Machine for cutting patterns



limits Stains PATENT Unmet.

JAMES lVILLlAM DEARING, OF BROOKLYN, NE'W YORK.

MACHINE FOR CUTTING PATTERNS.

SPECIFICATION forming part of Letters Patent No. 399,847, dated March 19, 18819. Application filed December 14, 1887. Serial No. 257,863- (No model.)

To aZZ whom, it may concern:

Be it known that 1, JAMES WILLIAM DEAR- ING, of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Machine for Cutting Patterns, of which the following is a full, clear, and exact description.

My invention relates to a machine for cutting patterns, specially scalloped cdgings and similar goods for ornamentation or to be ornamented, and has for its object to provide a means whereby a knife maybe expeditiously and conveniently manipulated while in mo tion, and also wherein said knife may be actuated by connection with any piece of mechanism having a vertical reciprocating motion-as, for instance, the needle-bar of a sewing-machine.

The invention consists in the construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming apart of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan view of the device attached to a sewing-machine. Fig. 2 is a side elevation, partially in section; and Fig. 3 is a front elevation, the table being shown in section.

The prime object ofthe invention is to provide a device capable of ready attachment to a sewing-machine, scroll-saw, or other machine of similar nature having a vertical reciprocating motion, by the use of which. attachment the edges of fabrics, leather, or similar material may be expeditiously scalloped.

In carrying out the invention, A represents the head of a sewing-machine; B, the needlebar, and C a block attached to the head of the machine, which block is provided with a longitudinal groove extending through the block at the lower end.

\Vithin the groove in the block C the longer member, (I, of a U-shaped reciprocating bar, D, is held to slide in any approved manner, the said member (1 being provided at its extremity with a lug or arm, d projecting outward at right angles thereto, as illustrated in Fig. 2, which arm is apertured to receive the needle-bar or a screw, whereby the said needle-bar and arm are held in engagement.

To the extremity of the short member d of the U-shaped bar D a carrying-bar, E, is swiveled in any suitable manner, the same being eifected in the present instance by a pintle, e, passing longitudinally into the member cl and the carrying-bar, a pin, 6, passing through the said member d and engaging a transverse peripheral slot in the pintle, whereby the said rod is prevented from turning at that end. The carrying-bar is allowed to turn freely upon the pintle by means of a peripheral and annular groove, 6 formed upon the latter, and a pin, a", passing through the former in essential contact through the groove 6 in the latter, as illustrated in Fig. 2.

In the lower end of the carrying-bar a knife, F, is detachably held by means of screws or equivalent fastening devices, which knife is provided with a body portion, f, a cuttingedge, f, at the lower end of the body, and a narrow perpendicular and downwardly-extending guide-arm, f integral with the body and forming the rear wall of the cutting-edge, as more clearly shown in Fig.

A recessed block, H, is held to slide vertically upon the reciprocating knife or carrying-bar by means of a collar formed upon the latter above the knife-slot, or lugs h, formed upon opposing sides, the said block .H being provided with aligning horizontal arms h at each end upon that side in which the cuttingedge of the knife is set, and to the extremity of each arm a spring, H, is attached, curving to the rear of the knife, as illustrated in Fig. 3, and the two springs 11 are connected at their lower ends by a horizontal feed-bar, H provided with a toothed or serrated bearingsurface, 71.

The upward throw of the feed-carrying plate H is limited by a screw or pin, k, entered into one of a series of apertures, 71:, produced in the knife-bar.

Upon the bed M, over and through which the knife is reciprocated, a stepped annular recess, M, is produced, in which a circular table, N, is adapted to revolve, the said table, which projects up flush with the bed, being retained in position by a recessed plate, m, sunk into and secured to the bed, as shown in Fig. 1. Centrally the under side of the rotary table an integral collar, on, is provided, and upon the upper face, near the periphery, a handle, a, is secured, whereby the table is fully or partially rotated by the operators hand, and through the center of the table,in eluding the collar, a vertical slot, n, is cut, to receive the guide-arm of the knife.

A presser-foot, Q, is made to encompass the knife-slot n of the table, being made to normally bear upon the table, which presser-foot may be constructed in any approved manner, one form of which is illustrated in Fig. 1., the same consisting of a piece of spring-wire secured at one end to the machine-bed at right angles to the knife-carrying bar, having the other end curved, as shown at 0, Fig. 1, to surround or partially surround the knife hearing upon the rotary table, as shown in Fig. 3.

I desire it distinctly understood that I do not confine myself to the attachment of the device to a sewing-machine, as it may be used in connection with a scroll-saw or similar machine, if so desired; and the reciprocating arm of the cutting device to which the attachment is made may be an L-shaped or straight bar instead of a U-shaped bar, as desired. In fact, the reciprocating bar to which the knife-carrying bar is attached maybe of any shape required for attachment to the driving mechanism.

In operation the goods to be cut are placed. under the presser-foot, and with one hand the operator presses the goods against the knife, with the other hand manipulating the revolving table to accomplish a given size or shape of scallop. The feed is set at a height to engage and commence carrying the goods forward at the moment the knife commences to cut, and the said feed will, by reason of its attachment to'the same carrying-bar with the knife, relinquish its holdsimultaneously with the upward Il'lOVQlIlQlli] of the knife. the feed carries the goods forward only a dis tance corresponding with the length of a single cut, acting only when the knife is carried downward and due to the attachment of the feed to the knifebar. The feed also at all times and under all circumstances carries the goods away in directalignmcntwith the back of the knife.

Having thus described my in vention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, wit-h the bed-plate, the tool-carrying bar, and means for operating it, of a yielding feeder connected at its upper end to the bar and inclined or curved downward and rearward from its point of attachment, to bear down upon the work in the downward movement of the bar, and thereby force or feed the work toward the front side of the said tool-carrying bar, substantially as set forth.

2. The combination, with the bed-plate, the tool-carrying bar, and means for operating it,

Thus

of a yielding feeder having a limited movement upon the said bar above its toolreceiving end and inclined or curved downwardly to the rear side of the said bar, to bear down upon the work and force or feed it toward the front side of the bar in the downward movement thereof, substantially as set forth.

3. In a machine for cutting patterns, essentially as herein described, the combination, with a reciprocating arm, a vertical bar swiveled to said arm, and a knife carried by said bar above the top of the work-plate, of a block sliding upon the knife-bar and a springactuated feed-bar attached to said block at right angles to and in rear of the knife, all as and for the purposes herein set forth.

4. In a machine for cutting pattern s, essentially as herein described, the combination, with a reciprocating arm, a vertical bar swiveled to said arm, and a knife carried by said bar, of a block sliding upon the knife-bar, provided with horizontal arms integral with the front face, rearwardly-extending curved springs attached to said arms, and a feed-bar carried horizontally by said springs, substantially as and for the purposes herein set forth.

5. In a machine for cutting patterns, essentially as herein described, the combination, with a reciprocating arm, a vertical bar swiveled to said arm, a knife carried by said bar, provided with an integral iierpendicular guide, a block sliding upon the knife-bar, having horizontal arms integral with the front face, rearwardlyextending curved sprin s attached to said arm, and a feed-bar carried horizontally by said springs, of an apertured bed, a table rotating in said bed, provided with an aperture receiving the knife-guide, and means, substantially as described, for retating the table, as and for the purposes herein set forth.

6. In a machine for cutting patterns, essentially as herein described, the combination, with a reciprocating arm, a vertical bar swiveled to said arm, a knife carried by said bar, provided with an integral perpendicular guide, a block sliding upon the knife-bar, h aving horizontal arms integral with the front face, rearwardlyextending curved springs attached to said arms, and a toothed orserrated feed-bar secured to said springs, of an apertured bed, a table rotating in said bed, provided with an aperture receiving the knife-guide, a presser-barattached to the bed surrounding the knife and bearing upon the table, and means, substantially as described, for rotating the table, as and for the purposes herein set forth.

7. The combination, with the machine head, bar B, and vertically-grooved block 0, secured to the head, of. the V-shaped bar D, the arm d of which extends through the groove in block 0, the arm (Z connecting the arm (1 with the bar B, the knife-carrying bar E, swiveled to the lower end of the arm d, the knife F on the lower end of said bar, and

the vertically slotted rotary table, down through which the knife extends, substantially as set forth.

8. The combination, with the rotary vertically slotted. table and the reciprocating knife extending down therethrough, of the presser-foot formed of a spring fixed at right angles to the knife, and having its free end bent around the knife just above or along the upper face of the table, substantially as set forth.

9. The combination, with a rotary vertically-slotted table and a horizontal spring presser-foot ext-ending across the upper face thereof and bent around the said slot of a vertically reciprocating knife-bar, having a knife extending down through the pr-esserfoot andslotted table, and a collar or block loose upon the knife-arm, and having a horizontal yielding feed-bar at right angles to the cutting-edge of the knife and in rear thereof, said feed-bar operating beyond the presserbar, substantially as set forth.

10. In a pattern-cutting machine, the feeder comprising the collar or block H, the springs H secured to opposite sides thereof, and the serrated feed-bar H connecting the lower ends of the springs.

J. \VM. DEARING.

WVitnesses:

J. F. ACKER, J12, O. SEDGWIeK. 

